Science games...
http://ionfuture.org/

Cool website..
http://www.hhmi.org/coolscience/resources/SPT--FullRecord.php?ResourceId=39

From definedstem.com:
Wind Turbines Idea from definedstem.com:
Students consider the value of wind power as an alternative form of energy, and decide if it has the potential to provide enough energy to a community to make it worth the investment. How do wind turbines work in terms of converting wind to energy? What are the most critical parts of a wind turbine and why? How much energy does a typical large wind turbine produce? Where are the best locations for the placement of wind turbines? How does the energy travel from the turbine to the community? What concerns for the environment do windmills present? Do wind turbines offer energy cost savings for consumers?
video..
http://www.definedstem.com/home/real-world-video/

Robotics..
http://www.teachingtorch.com/
http://incredibots.com/if/game.php

Roller coaster PBL..
http://wveis.k12.wv.us/teach21/public/project/Guide.cfm?upid=3418&tsele1=3&tsele2=108

Cells
http://local.brookings.k12.sd.us/biology/honorscells.htm
http://scorescience.humboldt.k12.ca.us/fast/teachers/Internauts/teacherpage.htm
http://prezi.com/qq5qi738q-pv/cell-organelles-project/
A Cell City project..
Reading bar graphs..http://www.khanacademy.org/math/arithmetic/interpreting-data-topic/reading_data/v/reading-bar-graphs
From Ramsey School District..
http://www.docstoc.com/docs/137473174/Cell-Organelle-Project---Solon-City-Schools
http://learningcenter.nsta.org/product_detail.aspx?id=10.2505/4/ss11_034_05_64
http://cellsalive.com/toc_cellbio.htm
Journal Articles..